/* ==========================================================================
   base.css — reset, elements, layout primitives. Load order 2 of 3.
   Consumes tokens only (DL-V1 Rule 2: no hex literals here).
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-surface-bg);
  color: var(--color-text-primary);
  font-family: var(--type-family-sans);
  font-size: var(--type-scale-body);
  line-height: var(--type-leading-relaxed);
  font-feature-settings: "kern" 1, "liga" 1, "cv11" 1;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: var(--type-weight-semibold);
  line-height: var(--type-leading-tight);
  letter-spacing: var(--type-tracking-tight);
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a {
  color: var(--color-text-link);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover { text-decoration: underline; }

button { font: inherit; color: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
  border-radius: var(--radius-subtle);
}

/* ---- layout primitives ---- */

.pub-wrap {
  width: 100%;
  max-width: var(--layout-max);
  margin-inline: auto;
  padding-inline: var(--space-page);
}

.prose { max-width: var(--layout-prose); }

.stack > * + * { margin-top: var(--space-comfortable); }
.stack-airy > * + * { margin-top: var(--space-airy); }
.stack-compact > * + * { margin-top: var(--space-compact); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-compact);
}

.section { padding-block: var(--space-section); }
.section-tight { padding-block: var(--space-gutter); }

.divider {
  height: 1px;
  background: var(--color-border);
  border: 0;
  margin: 0;
}

/* ---- typography roles ---- */

.display {
  font-family: var(--type-family-display);
  font-size: var(--type-scale-display);
  font-weight: var(--type-weight-regular);
  line-height: 1.04;
  letter-spacing: -0.022em;
}

.h1 { font-size: var(--type-scale-h1); font-family: var(--type-family-display); font-weight: var(--type-weight-regular); letter-spacing: -0.02em; }
.h2 { font-size: var(--type-scale-h2); font-family: var(--type-family-display); font-weight: var(--type-weight-regular); letter-spacing: -0.018em; }
.h3 { font-size: var(--type-scale-h3); }
.h4 { font-size: var(--type-scale-h4); }
.h5 { font-size: var(--type-scale-h5); }

.pub-kick {
  font-family: var(--type-family-mono);
  font-size: var(--type-scale-eyebrow);
  text-transform: uppercase;
  letter-spacing: var(--type-tracking-wide);
  color: var(--color-text-tertiary);
  font-weight: var(--type-weight-medium);
}

.lede {
  font-size: var(--type-scale-body-lg);
  line-height: var(--type-leading-relaxed);
  color: var(--color-text-secondary);
}

.small { font-size: var(--type-scale-small); }
.caption { font-size: var(--type-scale-caption); color: var(--color-text-tertiary); line-height: var(--type-leading-normal); }
.muted { color: var(--color-text-tertiary); }
.secondary { color: var(--color-text-secondary); }

/* data text — mono, per DL-V2 §5 prose/data separation */
.data {
  font-family: var(--type-family-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.numeral {
  font-family: var(--type-family-display);
  font-size: var(--type-scale-numeral);
  font-weight: var(--type-weight-regular);
  line-height: 0.92;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

/* ---- grids ---- */
.grid { display: grid; gap: var(--space-comfortable); }
/* Grid items floor at min-content by default, which lets a dense child (a field
   list, a table) push a track wider than the viewport. Floor them at zero. */
.grid > * { min-width: 0; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (min-width: 700px) {
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 980px) {
  .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}